http://gigazine.net/news/20130102-household-account-book-of-man/

http://sankei.jp.msn.com/life/news/121201/bks12120107520002-n1.htm

http://www.sanspo.com/geino/news/20121231/oth12123105010003-n1.html

http://news.goo.ne.jp/article/sankei/nation/snk20130102500.html

http://headlines.yahoo.co.jp/hl?a=20130103-00000500-san-soci